<!--
 * @Author: summer12138 1343364145@qq.com
 * @Date: 2023-05-20 22:05:43
 * @LastEditors: Silence
 * @LastEditTime: 2023-05-22 11:13:13
 * @FilePath: \Vue核心技术与实战 - 作业\作业day02\学生信息管理.html
 * @Description: 这是默认设置,请设置`customMade`, 打开koroFileHeader查看配置 进行设置: https://github.com/OBKoro1/koro1FileHeader/wiki/%E9%85%8D%E7%BD%AE
-->
<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <div id="app">
    <div>
      <span>姓名:</span>
      <input type="text" v-model="name" />
    </div>
    <div>
      <span>年龄:</span>
      <input type="number" v-model="age" />
    </div>
    <div>
      <span>性别:</span>
      <select v-model="gender">
        <option value="男">男</option>
        <option value="女">女</option>
      </select>
    </div>
    <div>
      <button @click="add(id)">添加/修改</button>
    </div>
    <div>
      <table border="1" cellpadding="10" cellspacing="0">
        <tr>
          <th>序号</th>
          <th>姓名</th>
          <th>年龄</th>
          <th>性别</th>
          <th>操作</th>
        </tr>
        <tr v-for="(item) in arr">
          <td>{{item.id}}</td>
          <td>{{item.name}}</td>
          <td>{{item.age}}</td>
          <td>{{item.gender}}</td>
          <td>
            <button @click="del(item.id)">删除</button>
            <button @click="edit(item.id)">编辑</button>
          </td>
        </tr>
      </table>
    </div>
  </div>
  <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
  <script>
    const app = new Vue({
      el: '#app',
      data: {
        name: '',
        age: '',
        gender: '',
        id: '',
        arr: [{ id: 1, name: '刘文亮', age: 18, gender: '男' }]
      },
      methods: {
        add (i) {
          if (this.name == '' || this.age == '') {
            return alert('不能空')
          } else if (i == '') {
            this.arr.push({ id: this.arr.length + 1, name: this.name, age: this.age, gender: this.gender })
          } else {
            this.arr.forEach(item => {
              if (item.id == i) {
                item.name = this.name
                item.age = this.age
                item.gender = this.gender
              }
            })
          }
          this.name = this.age = this.gender = this.id = ''


        },
        edit (i) {
          this.arr.forEach(item => {
            if (item.id == i) {
              this.name = item.name
              this.age = item.age
              this.gender = item.gender
              this.id = i
            }
          })
        },
        del (i) {
          this.arr = this.arr.filter(item => item.id != i)
        }
      },
    })
  </script>
</body>

</html>